Keysight P9241, Scpi Programmer'S Manual

Page: 453 / 1344

:MEASure Commands
21
Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide 453
:MEASure:NDUTy
(see page 1196 )
Command Syntax
:MEASure:NDUTy [<source>]
<source> ::= {CHANnel<n> | FUNCtion<m> | MATH<m> | WMEMory<r>}
<n> ::= 1 to (# of analog channels) in NR1 format
<m> ::= 1 to (# math functions) in NR1 format
<r> ::= 1 to (# ref waveforms) in NR1 format
The :MEASure:NDUTy command installs a screen measurement and starts a
negative duty cycle measurement on the current :MEASure:SOURce. If the
optional source parameter is specified, the current source is modified.
Query Syntax
:MEASure:NDUTy? [<source>]
The :MEASure:NDUTy? query measures and outputs the negative duty cycle of the
signal specified by the :MEASure:SOURce command. The value returned for the
duty cycle is the ratio of the negative pulse width to the period. The negative pulse
width and the period of the specified signal are measured, then the duty cycle is
calculated with the following formula:
-duty cycle = (-pulse width/period)*100
Return Format
<value><NL>
<value> ::= ratio of negative pulse width to period in NR3 format
See Also • "Introduction to :MEASure Commands" on page 432
• ":MEASure:PERiod" on page 460
• ":MEASure:NWIDth" on page 456
• ":MEASure:SOURce" on page 472
• ":MEASure:DUTYcycle" on page 446
NOTE
The signal must be displayed to make the measurement. This command is not available if the
source is FFT (Fast Fourier Transform).